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Table 2 Intraoperative outcomes before and after matching with propensity score matching (PSM)

From: Minimally invasive versus open right hepatectomy: comparative study with propensity score matching analysis

Variable ORH
N = 131
MIRH
N = 47
P ORH after PSM
N = 60
MIRH after PSM
N = 37
P
Associated radiofrequency (%) 6 (4.6%) 1 (2.1%) 0.68 1 (1.7%) 1 (2.7%) 1
Pringle’s maneuver (%) 36 (27.5%) 8 (17%) 0.17 17 (28.3%) 6 (16.2%) 0.26
Clamping time (min)
Median (interquartile range)
15 [14.5–30] 15 [6.25–40] 0.71 12 [0–30] 0 [0–7.5] 0.07
Operative time (min)
Median (interquartile range)
390 [320–480] 360 [275–480] 0.43 390 [322.5–480] 360 [260–491.25] 0.42
EBL (ml)
Median (interquartile range)
500 [400–1000] 475 [250–675] 0.007 500 [400–1000] 400 [215–600] 0.01
Transfusion (%) 37 (28.2%) 9 (19.1%) 0.25 17 (28.3%) 7 (18.9%) 0.42
  1. Values with statistical significance (P < 0.05)
  2. ORH open right hepatectomy, MIRH minimally invasive right hepatectomy, EBL estimated blood loss
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